Tooth separator



Nov. 3, 1931. s. lvoRY 1,829,898

' TOOTH SEPARATOR Filed April 2v, 1951 1N V EN TOR. @v-5 TER 5. /vo/PY.

BY @Y ATTORNEY.

*145 My'invention further-consists of various .other novel yteaturesfofconstructiony andadly jvantage all' Yas Vheremafter ydescribed andy :j.Pafendi Nov.. 3.51931 A i OFFmE errns'rnnis. rvonYLon HILADPA,aPENNsYny-NIA, nssIeNon To THE ESTATE oF s;

J. w. LVORY, or PHILADE1.21115; rEnNsYLvANm j My 'inventionrelates to a`new and useful tooth" separator, lthe saine being an improvefmentfon myprior rPatent #11,7 02,869 of Feb- .'ruaryj1'9th 1929. The' generalvpurpose `and the advantages ofniy inventionware fully setV inner"surface of theV teeth, by means of a `threaded element and this consumedunnecefs- .lfsary-'rtimaand I have therefore'invented-a 15newconstruction whereby said jaws could be set byhand to any desiredyadjustment 'after f which 'the gradual separating by means of the Y vthreaded elementl could be accomplished. i f j Second, in my priorconstruction theouter "2.0 j aws, that is, the jaws that bear on theouter surfacefof the teeth, were individuallyad- Y justable by meansofna threaded element which by nature of the construction was lol j'cated in close prozriinity'toy the gums and the 25 lips so thatmanipulation of said outer jaws was rather diicult, and: I lhaveinvented a A Y newconstruction wherebysaid threadedelementsareidispensed wit Y It is the'objectof my present invention torelimiiiate these disadvantagesand to provide V a toothseparator, thejaws of which couldbe set-.by hand to'anyfdesired adjustment prior gtothe application of gradual pressure by means of the threaded elementwhich forces the jaws apart to bring aseparating action to bearkupon theteeth to be alected.

Y To the above endsmy invention consists of an inner pair of hookedjaws, pivoted at their outerfendsto'a common link, a threadedelementengaging said link, atoggleconnection adaptedito beoperatedbyysaidthreaded element, apair ofY slotted bracketscarried bysaidfjawsand an outerfpair ofjaws adapted to lslide in'said brackets andto beactuated` by said toggle connection.

' claimedin the drawings, in which eiin'icuop meaA ein 27.1931'.

vhereinI shown4 and 2 described.

j For thepurpose ofV illustrating invenf.`

TOQTSEPART serial nos-533,044.

tion, I havel showny in. the` accompanying drawings one form thereofwhich is at .present preferredfby me, :since the same has 'been foundinrpractice to give satisfactory and reliable results, although it is tovbe'understoodzthat the various instrumentalities of which my inventionAconsists can be variously. arranged andorganized and't-hat my inventionis notflimited to the;precisearrangement and organization' of the"instrumentalitiesy -as Fig. l'represents a plan View of atoothseparatorembodying' myinvention shown I applied tothe separation oftwocontiguous l teeth-.quiv=4 .y ,Y i

A l1T-ig.: represents a view similar toFig. 1 showingfmylnovel toothseparator applied :to the separation 1of--twononcontiguous teeth. Fi,isa-section online 2 -2 of Fig. 1.

Figgfr'epresentsa perspective View ofc-one of the inner 'jaws formingpart of my tooth separator. f' f Fig. 5 yisfaplan view off one oftheouter jaws whichfoi-mpart of myV tooth separator.

' Vlvigp representsa section on. line 6,-6 of Fig VTis a sectienon line7-7 of F ig. 1. 'f

vReferring 'toV the drawings' in` which like 'i 'referencevcharacters'indicate like parts, andl jmore particularly toFig. 1, Ihave shown a/ novel tooth separator which comprises the innerjawshorjseparating members Sf-'and 9 *eacht ofwhich Aconsists of thehooked or deflected member 10whijch is integral with or secured to thearmllwhich terminates in a sharppoint at 15. The linklll is threadedly'engaged by the screw element 16 which carries at itsinner end thetoggle links 18 and 19 pivoted thereto at 20. 2l and 22'designate outerjawswliich are provided with the sharp points 23 and pivotedat 24 to thetoggle linksflS and l9. 'l `hejaws and 2Q 'are adaptedy to slide in` theUshaped brackets 25 and 26 which are secured'to'the armsll at 29.ThefpivotsQLLcOnneeting the toggle links 18 and`19to'the' jaws L21- and22 are adapted Fig; Iit will be seenthatI haverk illustrated il mydevice as applied to the separation of two l 'contiguous teeth 34' and36 with the sharpv points'23 of the outer jaws 21 and 22 bearing uponthe juxtaposed outer surfacesoi" the teeth 34 and 36 and'with theysharppoints 12 of the inner jaws 8vand'9 bearingupon the juXtaposedinnersurfaces ofthe teeth y321' had ybeen inserted.y e

'and 36. To separate the teethk34 and 36 it is necessary to turnthestem'l which forces the toggle links'18fandf19jforwardjuntil the".`-V pivots 24 reach the vinner ends of thes'lots* and 31. Further turningof the screw16 v results in lateral pressure exerted `onthe outer jaws 8and 9, 21 and 22l to separate thepointsv 12 and 23, thus forcing apartthe 'teethf34t` .andi36 between `which the'points-12 and 23 In thepositionof lthe parts illustratedin Fig.'1 thefj'aws 8,9, 21 and 22 arelocked against a'n'yrmovementJ and to'be abletofadi Y ,vjust'thespacingofthe-'jaws 8, 9, 21fand 22, f ,j by hand, ".without turning thescrew -16, Vit

fis'qn'ecessaryto turn the screw 16 lto move the 2v5- centerf20 ofrthetoggle connections 18V and'19 Y towards the jaws.l .When this has'beenkdon-e the jaws can beopened andfclosed through av screw`16 is turned toeiect separation to theY desired extent..

v Itv will thus be seenk that I havedevised a novel toothvseparator'which constitutes a distinct improvement over Ymy: priorvPatent Havingithus described myinvention what l claim as new and Vdesireto secureby-Letters Patent,fis:-Y A f' "Inl adevice ot-fthe' characterstated, a pair otfiiin'eraws`,fsl6ttedguide brackets carried thereby,`-apair of outer awsY adapted to slide "witliinh'said brackets, a: pivotedconnection commonjto the outer ends of said inner jaws, a vscrew'yelement threadedly Vengaging said pivotedconnection, togglelinkspivotallycjau'.-V ried by; the-inner fend of said. screw element,-theotherfendsofsaid toggle linksbeing piv- 'otally connected tosaidfouterjaws, the pivetal connections ofsaid toggle links and saidouter jaws engaging the slots in saidfbrackets. "In testimony whereoflaffix mysignature.

- 1 IVORY.

predetermined range without the turning of or both sides of theintermediate teeth41,"the

- thescrew16, sothatif it is desired to separate A. 1two nonlcontiguousteeth 38 and 40 from one L f toggle link center 20is movedv awayffromthe .v ,l

mits 1 the jaws 8, 9, 21- and .22 toi be separated by .Y hand andvparticularlyv itpe'rrrritsfthe ad- 1j u'stment 'of the jaws21"and 22 totheparticuflar position ofthe teeth to'be'separated.

After such adjustment hasbeemmade the screwf16is-turnedtoeiiectgradualse'p aration Las 'abwe described. In -Fig."2 rIhave illus` 'Y ytratedmy novel tooth separatorV in its yposilink; 14; by turning-thescrew 16. yIjlhis per- Y tion of maximum separation wherein is l shownas having separated two non-contiguous teeth 38 and' L10V-from anintermediate Y tooth 41 resulting'in the space 12 on either side ofthetoothfll-v yIn the position of the v part-sfillusti"ated*in Fig. 2'thejaws 8,79, "21 Y Y and 22are in their position of maximum'separationland cannot be manipulatedv by hand,

'this'posi'tionbeing the other or opposite exfV y l' treme of theposition shown in Fig. 2. To ma- .y i

nipulate the jaws 8, 9, 21and 22'by hand it is necessary that theYtoggle center20' oc- *V cupy a position intermediate of its positionsflin Figsjl and 2. VIn orderto effect individual adjustment ofthe ljaws21 and 22 before ap- {plyingpres'sure by turning the screw16`,'i t ismerely necessary to'posYitionithe toggle center j 2O -infanyintermediate `as opposedtdthe en*VVV treme positionsA thereof` so .astoV render' vthe Y' aws 8, 9, 21 and 22 manually movable.' ff .Y I

,izo

